Microwave pumping has recently been used to demonstrate that magnons in ferromagnets can undergo this process at relatively high temperatures. The Riemann Zeta function appears in calculations for the critical temperature of this phenomenon, and a formula for the single particle wavefunction of a sample after the sample has undergone this process is the Gross-Pitaevskii equation. This process was 
Microwave pumping has recently been used to demonstrate that magnons in ferromagnets can undergo this process at relatively high temperatures. The Riemann Zeta function appears in calculations for the critical temperature of this phenomenon, and a formula for the single particle wavefunction of a sample after the sample has undergone this process is the Gross-Pitaevskii equation. This process was initiated for the first time when magnetic evaporative cooling and laser cooling techniques were used to cool a sample of Rubidium-87 atoms to within a fraction of absolute zero. For ten points, identify this doubly-eponymous process possible only for particles with integer spin, in which a large fraction of particles in a sample collapse into the same quantum state.
Microwave pumping has recently been used to demonstrate that magnons in ferromagnets can undergo this process at relatively high temperatures.
{Bose}-{Einstein Condensation} (accept {Bose}-{Einstein Condensates})